necro can swap utility for reflect, thats with a 30s cd,
tempest has a lot of reflect,
core guard has anti projectile
but its still playable without tempest in enemy team
The population is too tiny to get a good matchmaking. The algorithm is no different from any competitive game.
Its either you wait 10 mins for a balanced game or 3 mins with less balanced game. Either way, there is no magic solution for gw2 pvp.